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Not yet recruitingNCT07514312STAY-UPUpdated Apr 7, 2026

Sustainable and AI-Enabled Adolescents and Youth-Centred Interventions to Upgrade Food Choices and Promote Healthy, Sustainable Diets

An interventional study of Artificial intelligence-supported digital nudging in Ultra-Processed Food Consumption, Obesity Prevention and Dietary Behaviour, sponsored by Istanbul Gelisim University. Not yet recruiting. Open to participants aged 12 Years to 25 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-04-07.

Sponsored by Istanbul Gelisim University · Not applicable, Interventional, and Prevention

Phase
Not applicable
Study type
Interventional
Enrollment
1,000
Allocation
Non-randomized
Ages
12 Years to 25 Years
Sex
All
01

Study summary

This study aims to evaluate the effectiveness of an artificial intelligence (AI)-supported, context-aware digital nudging intervention designed to reduce ultra-processed food consumption and improve dietary sustainability among adolescents and young adults. The intervention utilizes real-time behavioral data, including image-assisted dietary logging and contextual information, to identify high-risk consumption moments and deliver personalized, non-coercive nudges. The study will assess changes in ultra-processed food intake, contextual consumption patterns, and sustainability-related dietary indicators.

Read the detailed description

This study investigates the effectiveness of an artificial intelligence (AI)-supported, context-aware digital intervention targeting ultra-processed food (UPF) consumption among adolescents and young adults. UPF consumption has been identified as a major contributor to non-communicable diseases and is associated with significant environmental impacts. However, existing digital nutrition interventions largely rely on static, nutrient-based approaches and do not adequately capture real-life behavioral contexts.

The intervention integrates image-assisted dietary logging, contextual data collection (including time, location, and social setting), and explainable artificial intelligence to identify high-risk moments of UPF consumption. Based on these insights, the system delivers adaptive, personalized digital nudges designed to support healthier and more sustainable food choices without restricting user autonomy.

The study follows a controlled evaluation design to assess the effectiveness of the intervention. Primary outcomes include changes in context-specific UPF consumption patterns, while secondary outcomes include overall dietary quality, sustainability-related indicators (such as environmental impact proxies), and user engagement metrics.

This research aims to provide evidence for scalable, ethically governed digital health interventions that integrate behavioral science, nutrition, and sustainability within real-life settings

02

Conditions studied

  • Ultra-Processed Food Consumption
  • Obesity Prevention
  • Dietary Behaviour
  • Unhealthy Diet
  • Non-Communicable Chronic Diseases

Keywords

  • Ultra-Processed Food
  • Digital Intervention
  • Artificial Intelligence
  • Dietary Behavior
  • Adolescents
  • Young Adults
  • Nutrition
  • Sustainability
  • non-communicable disease
03

In context

Noncommunicable Diseases

144 studies on the registry are indexed under Noncommunicable Diseases; 55 are open to participants now.

This study's planned enrollment of 1,000 is above the median of 478 across 95 interventional studies indexed under Noncommunicable Diseases.

Browse Noncommunicable Diseases studies →

Lead sponsor

Istanbul Gelisim University is the lead sponsor of 64 studies on the registry; 8 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
12 Years to 25 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Adolescents aged 12 to 25 years
  • Ownership of a smartphone or regular access to a digital device
  • Ability to use the digital intervention platform
  • Willingness to provide (and parental consent where applicable)
  • Regular consumption of ultra-processed foods at baseline

Exclusion criteria

Exclusion Criteria:

  • Presence of medical conditions requiring a specific therapeutic diet
  • Participation in another dietary or behavioral intervention study
  • Severe cognitive or psychological conditions that may impair participation
  • Inability to use digital tools or applications
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
1,000 participants (estimated)

Study arms

  • Experimental
    Intervention group (artificial intelligence-supported, context-aware digital nudging intervention)

    Participants receive an artificial intelligence (AI)-supported, context-aware digital nudging intervention designed to reduce ultra-processed food (UPF) consumption. The system uses real-time dietary and contextual data to deliver personalized behavioural prompts.

    Behavioral: Artificial intelligence-supported digital nudging

  • No intervention
    Control group (Digital platform without nudging)

    Participants have access to the digital platform without active nudging components. No personalized behavioural prompts are delivered.

Interventions

  • BehavioralArtificial intelligence-supported digital nudging

    A context-aware digital intervention delivering personalized nudges based on real-time dietary behavior and contextual data to reduce ultra-processed food consumption.

06

What researchers measure

Primary outcomes

  1. Change in ultra-processed food consumption (servings per day)

    Change in ultra-processed food consumption, expressed as servings per day, assessed using dietary intake data collected via a digital dietary assessment platform (food diary-based tracking system). Consumption will be quantified based on reported frequency and portion size.

    Time frame: From baseline to 10 months and 20 months

Secondary outcomes

  1. Change in frequency of ultra-processed food consumption (times per day)

    Change in the frequency of ultra-processed food consumption, expressed as times per day, assessed using a digital dietary tracking platform (food diary-based system).

    Time frame: From baseline to 10 months and 20 months

  2. Change in proportion of ultra-processed food consumption (% of total intake)

    Change in the proportion of ultra-processed food consumption, expressed as percentage of total dietary intake, derived from dietary tracking data collected via a digital dietary assessment platform.

    Time frame: From baseline to 10 months and 20 months

  3. Change in temporal eating patterns (eating occasions per day and timing)

    Change in temporal eating patterns, including number of eating occasions per day and timing of meals, assessed using time-stamped dietary records collected via a digital dietary tracking platform.

    Time frame: From baseline to 10 months and 20 months

  4. Change in context-specific dietary behaviours (categorical variables)

    Change in context-specific dietary behaviours, including eating location and social context, assessed as categorical variables using data recorded via a digital dietary tracking platform.

    Time frame: From baseline to 10 months and 20 months

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 7, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07514312
Lead sponsor
Istanbul Gelisim University
Responsible party
Hatice Merve Bayram (Associate Professor, Istanbul Gelisim University) — Principal investigator
First posted
Apr 7, 2026
Start date
Sep 16, 2026 (estimated)
Primary completion
Dec 30, 2027 (estimated)
Completion
Jun 30, 2028 (estimated)
Last update
Apr 7, 2026

Study contacts

HATİCE MERVE BAYRAM, PhD
Contact
hmbayram@gelisim.edu.tr
+905549915658
Arda OZTURKCAN, PhD
Contact
sozturkcan@gelisim.edu.tr
05356068687
Elena Milli, PhD
study chair · Polo Europeo della Conoscenza - Istituto Comprensivo di Bosco Chiesanuova
Stefano Cobello, PhD
study chair · Polo Europeo della Conoscenza - Istituto Comprensivo di Bosco Chiesanuova

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Mar 2026. You cannot join it, but the record below documents what was studied.

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